Blood Lock

You perform a short ritual, combining the spell's components. When you apply the mixture to a closed door, window, gate, chest, or other entryway and speak the command word "Darastrixethe", it becomes locked for the duration. When you cast the spell on an object that already has a blood lock applied to it, you can choose to either suppress the lock for 1 minute or dispel the lock entirely. The object is impassable until the spell is otherwise dispelled or suppressed. Casting knock on the object suppresses the spell for 1 minute.